Solutions for PowerPoint slides that cannot be played Full-screen:
Symptom: Widescreen display on both sides of Black edge!
Cause: Slides on widescreen displays are displayed on a 4:3 scale screen, so there's a black edge on both sides of the widescreen!
Unable to Full-screen method in PowerPoint2007:
① Click on the "Design" tab and click on the "Page Setup" button, as shown in the red area below;
② the "full screen (16:9)" or "full screen (16:10)" is the common aspect ratio for widescreen notebooks, found in the slide Size Drop-down menu, which is displayed under Page Setup. Generally common in these two zoom settings, after the adjustment is finished click OK.
At this point, return to the PPT slide full screen, the sides of the black side is not gone.
Tip: Of course, these are based on their own actual situation to adjust, if you think it is not suitable for you can adjust the "width" and "height"!
Resolution in PPT2003 cannot be full-screen:
Click Page Setup in the file in the menu bar, also, the Page Setup window pops up, we choose the bottom custom in the slide size drop-down menu, and then you set the number of centimeters in width and height, if your computer resolution is 1440*900,75dpi, So the centimeter number should be 48.77*30.48.